SECTION 22: T
ROUBLESHOOTING
139 of 147
Burner (continued)
22.4 Temperature Controls
If temperat
u
re control problems occ
u
r and are not remidied in the tro
u
bleshooting proced
u
re, refer to the
tro
u
ble shooting table for the
u
nit specific temperat
u
re control amplifier.
For
u
nits
w
ith the Maxitrol series 14 temperat
u
re control amplifier, refer to the Field Ser
v
ice Check List for
Series A1014 Amplifiers. Series 14 Amplifiers are s
u
pplied on
u
nits eq
u
ipped
w
ith Basic and SDC style remote
panels.
For
u
nits
w
ith the Maxitrol series 44 temperat
u
re control amplifier, refer to the Field Ser
v
ice Check List for
Series A 1044 Amplifiers. Series 44 Amplifiers are s
u
pplied on
u
nits eq
u
ipped
w
ith DTC remote panels.
If problems persist after performing the tro
u
bleshooting proced
u
re and the temperat
u
re control amplifier
tro
u
bleshooting proced
u
re contract the factory.
PROBLEM
POSSIBLE CAUSE
SOLUTION
No main flame
Man
u
al sh
u
t off
v
al
v
e closed
Open man
u
al sh
u
t off
v
al
v
e
Safety Sh
u
t Off Val
v
e not operating. Is there
positi
v
e gas press
u
re do
w
nstream of SSOV?
Check
w
iring from b
u
rner control to
SSOV
Verify inlet gas press
u
re
Replace SSOV
Minim
u
m gas s
u
pply press
u
re
Verify minim
u
m gas s
u
pply press
u
re
as per data plate is a
v
ailable
B
u
rner openings obstr
u
cted
Remo
v
e obstr
u
ction
Clean b
u
rner orifices holes
Improper b
u
rner lo
w
er fire adj
u
stment on
mod
u
lating
v
al
v
e
Adj
u
st lo
w
fire as per the rele
v
ant
Maxitrol temperat
u
re control instr
u
c-
tions
Summary of Contents for 2005
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Page 154: ...B SERIES INSTALLATION OPERATION AND SERVICE MANUAL 144 of 147...
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